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1. |
What is the polynomial function of least degree with integral coefficients that has zeros 2 and 3i? |
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A. |
y = x2 + x - 6 |
B. |
y = x2 - 5x - 6 |
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C. |
y = x3 - 2x2 - 9x + 18 |
D. |
y = x3 - 2x2 + 9x - 18 |
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Hint |
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2. |
The center of the circle with equation (x - 3)2 + (y + 2)2 = 4 has coordinates ___. |
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A. |
(3, -2) |
B. |
(3, 2) |
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C. |
(-3, -2) |
D. |
(-3, 2) |
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Hint |
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3. |
Find an equation of the circle that has a diameter with endpoints at
(6, 10) and (-2, 4). |
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A. |
(x - 6)2 + (y - 10)2 = 100 |
B. |
(x + 2)2 + (y - 4)2 = 100 |
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C. |
(x - 4)2 + (y - 3)2 = 53 |
D. |
(x - 2)2 + (y - 7)2 = 25 |
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Hint |
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4. |
The center of the circle with equation (x + 4)2 + (y + 15) 2 = 49 has coordinates ________. |
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A. |
(4, -15) |
B. |
(-4, 15) |
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C. |
(-4, -15) |
D. |
(4, 15) |
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Hint |
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5. |
Find the diameter of the circle with equation (x + 8) 2 + (y - 9) 2 = 121. |
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A. |
17 |
B. |
121 |
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C. |
22 |
D. |
11 |
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Hint |
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